- 18 Oct, 2021 2 commits
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Bjorn Andersson authored
Functions in the DisplayPort code that relates to individual instances (encoders) are passed both the struct msm_dp and the struct drm_encoder. But in a situation where multiple DP instances would exist this means that the caller need to resolve which struct msm_dp relates to the struct drm_encoder at hand. Store a reference to the struct msm_dp associated with each dpu_encoder_virt to allow the particular instance to be associate with the encoder in the following patch. Reviewed-by:
Abhinav Kumar <abhinavk@codeaurora.org> Reviewed-by:
Stephen Boyd <swboyd@chromium.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20211016221843.2167329-3-bjorn.andersson@linaro.orgSigned-off-by:
Rob Clark <robdclark@chromium.org>
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Bjorn Andersson authored
As the Qualcomm DisplayPort driver only supports a single instance of the driver the commonly used struct dp_display is kept in a global variable. As we introduce additional instances this obviously doesn't work. Replace this with a combination of existing references to adjacent objects and drvdata. Reviewed-by:
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- 15 Oct, 2021 38 commits
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Dan Carpenter authored
The msm_gem_new_impl() function cleans up after itself so there is no need to call drm_gem_object_put(). Conceptually, it does not make sense to call a kref_put() function until after the reference counting has been initialized which happens immediately after this call in the drm_gem_(private_)object_init() functions. In the msm_gem_import() function the "obj" pointer is uninitialized, so it will lead to a crash. Fixes: 05b84911 ("drm/msm: prime support") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20211013081315.GG6010@kiliSigned-off-by:
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Dan Carpenter authored
The "msm_obj->node" list needs to be initialized earlier so that the list_del() in msm_gem_free_object() doesn't experience a NULL pointer dereference. Fixes: 6ed0897c ("drm/msm: Fix debugfs deadlock") Signed-off-by:
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Dan Carpenter authored
Add a missing unlock on the error path if drm_sched_entity_init() fails. Fixes: 68002469 ("drm/msm: One sched entity per process per priority") Signed-off-by:
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Christophe JAILLET authored
'destroy_workqueue()' already drains the queue before destroying it, so there is no need to flush it explicitly. Remove the redundant 'flush_workqueue()' calls. This was generated with coccinelle: @@ expression E; @@ - flush_workqueue(E); destroy_workqueue(E); Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by:
Jyri Sarha <jyri.sarha@iki.fi> Reviewed-by:
Rob Clark <robdclark@gmail.com> Link: https://lore.kernel.org/r/75e8ba40076ad707d47e3a3670e6b23c1b8b11bc.1633874223.git.christophe.jaillet@wanadoo.frSigned-off-by:
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Bjorn Andersson authored
The "dp_debug" show function allocates a buffer and piecemeal appends line by line, checking for buffer overflows etc. Migrate the function to seq_file, to remove all the extra book keeping and simplify the function. Reviewed-by:
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Bjorn Andersson authored
The debugfs code is provided an array of a single drm_connector. Then to access the connector, the list of all connectors of the DRM device is traversed and all non-DisplayPort connectors are skipped, to find the one and only DisplayPort connector. But as we move to support multiple DisplayPort controllers this will now find multiple connectors and has no way to distinguish them. Pass the single connector to dp_debug_get() and use this in the debugfs functions instead, both to simplify the code and the support the multiple instances. Reviewed-by:
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Dmitry Baryshkov authored
First argument of cx_debugbus_read() should be 'void __iomem *' rather than 'void * __iomem' to make sparse happy. Signed-off-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20211002183118.748841-1-dmitry.baryshkov@linaro.orgSigned-off-by:
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Dmitry Baryshkov authored
Use clk_bulk_* API instead of hand-coding them. Note, this drops support for legacy clk naming (e.g. "iface_clk" instead of just "iface"), however all in-kernel device trees were converted long long ago. The warning is present there since 2017. Signed-off-by:
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Rob Clark authored
Add a short delay before clamping to idle frequency on active->idle transition. It takes ~0.5ms to increase the freq again on the next idle->active transition, so this helps avoid extra freq transitions on workloads that bounce between CPU and GPU. Signed-off-by:
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Rob Clark authored
Before open-coding this a 2nd time, add a helper. Signed-off-by:
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Bjorn Andersson authored
Not all platforms has P0 at an offset of 0x1000 from the base address, so add support for specifying each sub-region in DT. The code falls back to the predefined offsets in the case that only a single reg is specified, in order to support existing DT. Reviewed-by:
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Bjorn Andersson authored
Not all platforms has DP_P0 at offset 0x1000 from the beginning of the DP block. So split the dss_io_data memory region into a set of sub-regions, to make it possible in the next patch to specify each of the sub-regions individually. Reviewed-by:
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Bjorn Andersson authored
In order to deal with multiple memory ranges in the following commit change the ioremap wrapper to not poke directly into the dss_io_data struct. While at it, devm_ioremap_resource() already prints useful error messages on failure, so omit the unnecessary prints from the caller. Signed-off-by:
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Bjorn Andersson authored
The non-devres version of ioremap is used, which requires manual cleanup. But the code paths leading here is mixed with other devres users, so rely on this for ioremap as well to simplify the code. Reviewed-by:
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Bjorn Andersson authored
reg was defined as one region covering the entire DP block, but the memory map is actually split in 4 regions and obviously the size of these regions differs between platforms. Switch the reg to require that all four regions are specified instead. It is expected that the implementation will handle existing DTBs, even though the schema defines the new layout. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Dan Carpenter authored
The msm_iommu_new() returns error pointers on failure so check for that to avoid an Oops. Fixes: ccac7ce3 ("drm/msm: Refactor address space initialization") Signed-off-by:
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Dan Carpenter authored
There are two problems here: 1) The "seqptr" is used uninitalized when we free it at the end. 2) The a6xx_gmu_get_mmio() function returns error pointers. It never returns true. Fixes: 64245fc5 ("drm/msm/a6xx: use AOP-initialized PDC for a650") Fixes: f8fc924e ("drm/msm/a6xx: Fix PDC register overlap") Signed-off-by:
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Dmitry Baryshkov authored
The DSI host might be left in some state by the bootloader. If this state generates an IRQ, it might hang the system by holding the interrupt line before the driver sets up the DSI host to the known state. Move the request_irq into msm_dsi_host_init and pass IRQF_NO_AUTOEN to it. Call enable/disable_irq after msm_dsi_host_power_on/_off() functions, so that we can be sure that the interrupt is delivered when the host is in the known state. It is not possible to defer the interrupt enablement to a later point, because drm_panel_prepare might need to communicate with the panel over the DSI link and that requires working interrupt. Fixes: a689554b ("drm/msm: Initial add DSI connector support") Signed-off-by:
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Vladimir Lypak authored
MDP version v1.16 is almost identical to v1.15 with most significant difference being presence of second DSI interface. MDP v1.16 is found on SoCs such as MSM8x53, SDM450, SDM632 (All with Adreno 506). Signed-off-by:
Vladimir Lypak <vladimir.lypak@gmail.com> Signed-off-by:
Sireesh Kodali <sireeshkodali1@gmail.com> Reviewed-by:
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Vladimir Lypak authored
Add phy configuration for 14nm dsi phy found on MSM8953 SoC. Only difference from existing configurations are io_start addresses. Signed-off-by:
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Sireesh Kodali authored
SoCs based on the MSM8953 platform use the 14nm DSI PHY driver Signed-off-by:
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Wang Qing authored
dev_pm_opp_find_freq_exact never return null but ERR_PTR(),so we should use IS_ERR() to clarify and avoid compilation warnings. Signed-off-by:
Wang Qing <wangqing@vivo.com> Link: https://lore.kernel.org/r/1604630714-6163-1-git-send-email-wangqing@vivo.comSigned-off-by:
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Deepak R Varma authored
Using DEFINE_DEBUGFS_ATTRIBUTE macro with debugfs_create_file_unsafe() function in place of the debugfs_create_file() function will make the file operation struct "reset" aware of the file's lifetime. Additional details here: https://lists.archive.carbon60.com/linux/kernel/2369498 Issue reported by Coccinelle script: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci Signed-off-by:
Deepak R Varma <mh12gx2825@gmail.com> Link: https://lore.kernel.org/r/9ca2c2e4cbd9ebb282b90f742305fd9b481aacc2.1603998014.git.mh12gx2825@gmail.comSigned-off-by:
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Bernard authored
Delete the conversion from bool value to bool function return. Signed-off-by:
Bernard Zhao <bernard@vivo.com> Link: https://lore.kernel.org/r/AI*ANACSDfnjQejyeNXUnKoQ.1.1604995827401.Hmail.bernard@vivo.comSigned-off-by:
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Xu Wang authored
Because clk_prepare_enable() and clk_disable_unprepare() already checked NULL clock parameter, so the additional checks are unnecessary, just remove them. Signed-off-by:
Xu Wang <vulab@iscas.ac.cn> Reviewed-by:
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Xu Wang authored
Because clk_prepare_enable() and clk_disable_unprepare() already checked NULL clock parameter, so the additional checks are unnecessary, just remove them. Signed-off-by:
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Xu Wang authored
Because clk_prepare_enable() and clk_disable_unprepare() already checked NULL clock parameter, so the additional checks are unnecessary, just remove them. Signed-off-by:
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Bernard Zhao authored
Fix sparse warning: drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c:1195:41: warning: Using plain integer as NULL pointer drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c:1348:32: warning: Using plain integer as NULL pointer Signed-off-by:
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Tim Gardner authored
Coverity complains of a possible NULL dereference: CID 120718 (#1 of 1): Dereference null return value (NULL_RETURNS) 23. dereference: Dereferencing a pointer that might be NULL state->bos when calling msm_gpu_crashstate_get_bo. [show details] 301 msm_gpu_crashstate_get_bo(state, submit->bos[i].obj, 302 submit->bos[i].iova, submit->bos[i].flags); Fix this by employing the same state->bos NULL check as is used in the next for loop. Cc: Rob Clark <robdclark@gmail.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: linux-arm-msm@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Signed-off-by:Tim Gardner <tim.gardner@canonical.com> Reviewed-by:
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Colin Ian King authored
The variable bpp is being initialized with a value that is never read, it is being updated later on in both paths of an if statement. The assignment is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by:Colin Ian King <colin.king@canonical.com> Reviewed-by:
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Rob Clark authored
These aren't used. And if we add use for them later, we should probably do something a bit more structured than string parsing. Signed-off-by:
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Rob Clark authored
For now, since we have a mix of bridges which support this flag, which which do *not* support this flag, or work both ways, try it once with NO_CONNECTOR and then fall back to the old way if that doesn't work. Eventually we can drop the fallback path. v2: Add missing drm_connector_attach_encoder() so display actually comes up when the bridge properly handles the NO_CONNECTOR flag Signed-off-by:Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
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Rikard Falkeborn authored
The only usage of hdmi_8996_pll_ops is to assign its address to the ops field in the clk_init_data struct, and the only usage of pll_init is to assign its address to the init field in the clk_hw struct, both which are pointers to const. Make them const to allow the compiler to put them in read-only memory. Signed-off-by:
Rikard Falkeborn <rikard.falkeborn@gmail.com> Reviewed-by:
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Marijn Suijten authored
div_u64_rem provides the result of the division and additionally the remainder; don't use this function to solely calculate the remainder while calculating the division again with div_u64. A similar improvement was applied earlier to the 10nm pll in 5c191fef ("drm/msm/dsi_pll_10nm: Fix dividing the same numbers twice"). Signed-off-by:
Marijn Suijten <marijn.suijten@somainline.org> Reviewed-By:
AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> Reviewed-by:
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zhaoxiao authored
Address the following checkpatch errors: ERROR: do not initialise statics to false FILE: :drivers/gpu/drm/msm/msm_drv.c:21: -static bool reglog = false; FILE: :drivers/gpu/drm/msm/msm_drv.c:31: -bool dumpstate = false; Signed-off-by:
zhaoxiao <long870912@gmail.com> Link: https://lore.kernel.org/r/20210906064315.4975-1-long870912@gmail.comSigned-off-by:
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Chi Minghao authored
Fix the following coccicheck REVIEW: ./drivers/gpu/drm/msm/edp/edp_ctrl.c:1245:5-8 Unneeded variable Reported-by:
Zeal Robot <zealci@zte.com.cn> Signed-off-by:
Chi Minghao <chi.minghao@zte.com.cn> Reviewed-by:
Lyude Paul <lyude@redhat.com> Reviewed-by:
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Mark Yacoub authored
[why] vsync_cnt atomic counter increments for every hw vsync. On the other hand, frame count is a register that increments when the frame gets actually pushed out. We cannnot read this register whenever the timing engine is off, but vblank counter should still return a valid number. This behavior also matches the downstream driver. [How] Read the encoder vsync count instead of the dpu_encoder_phys frame count. Suggested-by:
Mark Yacoub <markyacoub@chromium.org> Reviewed-by:
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Dmitry Baryshkov authored
As dpu_core_irq was merged into dpu_hw_intr, merge data structures too, removing the need for a separate data structure. Signed-off-by:
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